Combined type-writing and computing machine.



Wl WRIGHT. COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILEDSEPT. I8, T912. 1,2'471 Patented-Aug. I3, 1918.

2 sHEETs' sHEET 1.

w. WRIGHT. COMINED TYPI;` WRITING AND COMPUTING MACHINE.

APPLICATION FILED SEPT. I8. 1912.

, c .La b a. M n uo a f. S M l@ f ,e H W m N h im ,mw fr nd f P I z..| Imm u |I.||||I| IIIII'I'V f f i 1 n 7 Gu, 4 I 7 .1 l 2 HAHN II 1 "Enermee. 'Parana WAL'rnn'WRIGi-rr, or New YoniK, 1t. Y.,

ASSIGNOR T 'UNDERWOOD OMPUTING v MAcnINE'coi/LBANY,0F NEW YQRKQN. Y., ACORPORATION OFNEW Yom;

'eoMBrNEn TYPE-WRITING AND coMPUrING MACHINE.

vApplication led' September 18, 1912. Serial 110.720,914...

To illifwhom it may concern:- Be it knownl that I, WALTER VVRIGHI, a`

citizen of the United States, residing in New 'York. city, in the countyof New. York and State of New York, have .inventedcertainl new anduseful 'Improvements in Combined Type-Triting and'Coinputing Machines,of

which the following isv a specification.

' Computing wheels,

Ihis invention relates t0.. computing ma'- ch1nes,'and lsespeciallyadapted to beused Ain a 'combinedtypewriti'ng and computing- In said'combined machines, the-numeral keys are usually arranged to operateeither themselves orthrough a'power attachment, and in whatsoever methodthis Visdone, thevcomputing att-achment Vaffects to some degreethe'touch of the. typewriter keys. y In some forms of mecha-1 msm, evenwhen power-driven, the touch of such numeral keys is v ery much harderthan that of the remaining keys .of 'the typewriter, and in anykey-driven one, however lightly it may have been constructed anddesigned, the additionalinertia-of the computing mechanism is bound toadd some# thing to the load in operating its keys,and

so handicap the operator bothin speed and in comfort.

The present invention 1s described to overcome this and otherdificulties. It is herewith disclosed as applied to an Underwood'mechanism foraccomplishing this, preferablyis in the form of aConstantly-`d1iven motor. A power shaft. geared t0 saidmotorispreferably arranged tocarry driving members adjacentl to the numeralkeys or adjacent to links conected to them in such a manner that afterja nun'ieralykey is somewhatdepressed, the driving-inember will -pick upthe key or-ts link and automaticallv.completethe movement of said key.This power"driving-member preierably 1s 1n the form of an arm whichisarranged to its return stroke.

scribed.

lstrike and force vdownward a lug depending fron. al nf, aieral key.This 'lug preferably ber will 'swing the lug Preferably the.

the numeral key is almostV .or entirely unaffected by the computingmechanism, hut later when the computing mechanism begins to beaffected-by the computing key, the

power-drive will takehold of the 'computing' key and assist the'.operator as above def Other features and adva1'1tageswillhereina-fterappear.

z 'In the accompanying drawings,

Y. Figure `1 is a side' view largely diagrammatic" of -an Underwoodtypewriting mai chine. having a'lVright-'key-driven attachment to whichmy invention has been applied.

Fig-2 is a similar front View of the same.

Figs. 3 and 4 show viewsofthe numeral'l key driving link from oppositesides and its relation to some other-parts.

Figs. 5 and 6 show dagrammatically'the relation of the vdriving-meinhervto thenu.- meralkey lugand the cam which drives it.

Numeral keys 1 and letter keys 2 depress key-levers 3 to swing type-bars-l through bell c ranks 5 upwardly and rearward against a platen V6 sothat type 7 print Aagainst said platen.` Said platen is mounted in acarriage 8 which is drawn forward in letter-feeding dlrection by meansof a sprlng 95 not shown, and'is -controlled in said letter- -feedingbymeans of'an escapement wheel 9 carrying a 'ratchet l0 working in a rack11 connected to said carriage.` ment wheel is controlled by do s 12, 13,which are arranged to 'alternate y engage it.- andare operated by meansof' auniversal member l-l pivoted on a rock arm15v'and operated through-a segment 16 from heels 17 in the type-bars.

As said carriage Siti-avels along -in its letter-feeding movement. itycarries alongl with it by means of an arm 18, a totalizer 19,v

said totalizer comprising '.dial wheels Q0,

Said escape- Speccation of :Letters atent." Patentedug'; (L ljfS,

' ridesJ in a Ycam which,toward 'the fend of thev stroke of the key,guides the -lug out of the path of the driving-.member, and' at the veryend of the stroke a cam on thedriVing-memto start the key on Y computingmechanism'lis so arranged with reference to the numeral keys, thatthe'begi'nning ofthe stroke of 6a4 ifo' l dependingjtherefrolm which bysaid letter-feeding movement are arranged to be engaged aerz'azzm. to beturned by master-wheel in thepresent instance is arranged to '.'beturn'cd in a manner to be de-.

. scribedglater, by means of links-22 extending `upwardly from thenumeral keys, there beingone lilik for each numeral'key, and theconnect-ion being such thatthe masterv wheel ,will be turned io' numeralkey beingl 1operated.

, vFor lthe.purpose of assisting the keys bymeans of power, eachnum-eral key-'lever has 'thellever at 24and each link carries at its YENlower end a. lug 25,. s .the numeral key -is depressed, said lug 25 isguidd'around in 'a cam 26, s olas'to hiring said lug into the pat-li .ofa constantly1 '.drivenarm 27 which will strike said lug, as seen in Fig.4:, and drag saidy key-lever downwardly thereby. Said-powe'r-driven arm27, otwhich there is one for each vnumeral key, as seen in Fig.

, is -tast on a shaft; 281 journaled on the travel moreA easily in saiddirection, a spring l' 433 extends to t-he link 23 and is yanelnoredl inthe keyleverB-so .as to draw said 11n-k rearwardly.' -When sai-d linkhas been moved' as above described,` i'nto the path of the powerdriven.member 2 7,fi t reaches a part of-'the cam. 'groove which extendsvpractically straight downward and. later, whenV the key is near "thebottom of its stroke, as seen in Fig. 4, reaches. a part of the groovewhich extends forwardly-until' the point of the lug is reached; where'the key reaches the bottom' of its stroke.,l At this point, thegrooveeX- t'endst forwardly and, upwardly, and is so arranged to guide the lug25. that'is'drawn onto the cam 35 formed-n theeiid of the driving-member27 thereby causing said camrto force said 'lug forwardly and. upwardlvto some extent, as seen in'Figs. 5 and ff'until said' link is drawnupward with the key-lever by 'means ota returningspring 230. .whichnormally holds said key-leyer in itsnormal position. Said groove cam261s so arranged, as'said lug rises in it, to guide the lugrearwardly'as it approaches thev top Vlii'inging the lugagalnanpositionl to be guidedV rearwardly and downwardly on' the .next stroke?of the key-lever. Said' groove means of a master-wheel 21. Said inlproportion tothe a linkf23 pivotedo n Cam 2G -is' preferably given somefreedon vto move .so-as to relieve the rigidity of the purpose said'groove structure. For this cam 2G is formed in a member 37, slidablypivoted on a fixed rod 38 in the frameotl themachine. Said slidingmotion is permitted-by means ot`- a vertical slot 39- in .which saidtiXed 4rod plays. The lower end of said member 37 carries-aguiding'pin'JfO, which is guided in a` slot l1 extending upwardly andrearwardly in a'swinging arm pivoted on the swinging'arm ot said frameat 43. Said arm is norimillydrawn upwardly by meansof a spring 4l,whichl will yield and permit cam 4member 37 to be `carried downwardly tosome extent against fthe tension oi said spring ll it thedrivinginember27 happensto strike the cam memb'er 37,' so' as to movesaid 4cam member downwardly. 'There are preferablyformed for eachnumeral key-lever, twogdrivingmembers 27 on the shaft Q8, so that twicein. each revolution of the shaft 28, vthe numeral key-lever .may bedragged 'downif operated.

The computing mechanism 'proper is preferably formed so as to beoperated only after the numeral key 2l has been noticeably depressed.For this purpose, the link 22 may be arranged to move downwardly asegment 45 comprising a toothed-portion-46 and a toothless-portion 47..Said toothlessportion 47 normally -stands in engagement with the gearwheel 48, which is connected .to drive the master wheel, and thetoothless surface forms a `Geneva lock vwith the 'gear wheel 48,thusnormally locking said gear wheel 48. lVhen, however, said numeralkey has been depressed, say one-third of its stroke, the. tooth-portion460i said segment engages with saidv wheel 48 so asto positively -turnit. Said segment 45 also comprises a lsecond toothless-portion 49arranged to form a Geneva lock said wheel 48 after it' saidtoothed-portion 46. arrest said master-wheel.

has been turned by and'so positively In this way, any

voverthrow of4 the computing mechanism due numeral key 1 to over rapidaction of the is positively prevented." The group of segments takentogether form an indexing mechanism Jfor driving the computingwheels.

v'Said segment-may likewise comprise a full-stroke mechanism comprisinga ratchet 50 andv a pawl 51, so aste prevent any into positively. arrestiis complete action .of anyi1 numeral key. 'i Thus a it will beseenthatstroke of anyl numeral' key ispracti'cally preciselyv like that o' anyother keyi, that after said strokehas been well-begun, the

computing mechanism comes Aactively into` play, but about the saine`time .or perhaps a a little sooner, the power-member 27 begins to drivethe numeral kayby engaging the' beginningot' the:

' of its stroke, but that the connection through i the lug and 'thusrelieve'the nger of the.v

operator from any load the computing ymechanism mmv tend to throw ontoit.

It will be also observed that thenumeral:

key not positivelyv arrested .atathe bottom the cam-member 37is,sutiicieiitly ;loose.to allow `some variation in throwing due tolooseness inconstruction or' wear in the various parts.

In the:v computing mechanism herein illustrated, the-segment 45-turnsthe masterwheel .21 rthrough an intermediate sliaft'-52,

and the dial wheel 20 is turned, by the master-wheel 21 through an idlewheel 53.

Variations may' ibe; resorted to within the scope of the invention, andportions of the improvements may, bek `used IWithout others.l l i IHaving thus described my invention, I claim: Y i. v

l. In a combined typewriting and coniput-ing machine, thev combinationof comuting mechanism and typewriter numeral eys. connections betweensaid numeral -keys andv computin Wheels so `arranged that each key movesAreeof connection 4'with said computing mechanism duringv the `first vpart of its down stroke, but moves -inlconv nection with said 'computingmechanism during the Vremainder of its down' stroke, a source of power,a connection between each key and said source of powei` arranged to pickup each key at the time said key is connected with said computingmechanism and finish the operation of a key to drive saidr computingmechanism.

Q. In a combined typewriting and computing machine, the combination with'com'- puting vWheels and numeral keys,` of a llink depending fromA eachnumeral key, a lug on each link, a cam in ,which each'lug is guided, anda resilient member supporting'said cam.

3. Ina combined typewriting and `computing machine, the combination withco1n- 'pitting Wheels and numeral keys, of a master Wheel driven byvsaid numeral keys and ,adapted Ato engagejsaid' computing wheels.variati/m. to turn them, a'type-bar connected to each numeral key, a.linkconnected to each numeralkey, a lug on each of said links,

a cam" by which said link is guided, a powernected to each numeral key,a link connected to each numeral key, alug on said link,v a cam by whichsaid lilik is guided, a powerdriven member'adapted to .strikesaid-lugwhen said lug has passed part way along.. said cam, an extension on saidcam adapted. to guide said `lug out of the `path of said.

. power-driven member, acam fon -said power-v driven memberl adaptedgtoforce said lug l n along said .cam extension, anda `yieldable member`supporting saidJ link-guiding cam.v y'

5. In a key-driven computing ymachine the combination with computingmechanism' and numeral keys, of a sourcefof power fordrivingsaid'computing mechanism through said keys, l,saidsource of lpower'being nor-` mally. ineffective on said keys and said keys being normallyineifectiye -onsaid-lcomputing mechanism and means `acti-ng on the yde-.j

pression of-a numeralfkey and acting durlng the early part ofthe strokethereof to connect said source of power. to said `key and atsubstantiallythe samev time'toconf v nect said' key and said computingmechanism so that the source of-power drivesr the key -during the entirecomputing stroke- Y,

thereof to thereby 'relieve the key of any` `Work ofA driving the4computing mech e,

anism. i l 4 v6. In a combined: typewi'iting 'and come puting machine,the combination with' comfI teriwheel driven by said 'keysvand adapted;lto engage said'computing-wheels scrz'atim, a link connected to-eacli'"numeral key,. a-

` pting Wheels and numeral keys, of a mas-'l lug on each link, a cam -inwhichl each lug is guided, a resilient member supporting' said cam, apower-driven member for driv-L ing said keys by said linksfto an extentde; termined b vtheir cams, and type-bars con nected lto said keysadaptedv to print at the end'of a key stroke.

7'.' Alconiputing 'ni y stantly l driven power-member"and a con-Y'tinuous 'grooved cam for'controlling the' connection between thecoi'nputing keysandthepower,

8. A computing machine comprising a powerfdriven member constantlyrotating,

achine 'liaving' a ,con-V Aa link arranged to move'f'thecomputlngllmechanism, a key-lever forming' part of tlief connection betweenl said.'member'and "saidv mechanism, and a cani for moving saidlink as saidkey-lever is depressed tobi-ing said y f 4*120 l 9. In a. computing`machine the coinjbina-y ltion with a. power-driven member, otza nu`llink into the path ot' said member.v

meral key, a lug depending from -.s'aidkey,f an aim on saidpower-'driveninem'ber to strike said lug, a continuous cam comprising aAgroove having an elongated path, a point eachfend' thereof, a flatyportion interine diate said ends, and a.piriy-trayelinginsaid'.Agreovetegearry said` lag into thepath of said power-driven member at-theof a 'key depression and ont at the end of the key depression.

ter Wheel drven'by' said keys and adapted avt-ype-bai coniiectedfto esijclinumeralI key, a'A 'link connected t0 each numeral key,a lug" oneacli osaid links,'a cam for guiding each lug, a poWer-driven memberadapted to engage anyl lug to cause ittotravel along its cam an'dbecarried out of the path of said owerldriven member, a spring normallyiolding link, so that said lug will travel into the path of said'power-driven member,

and a resilient-member for holding said cam v an' position.' w

1 1.: In a combinedftypevvriting and com.-

-puting machine, the combination ivith numeral keysandcomputingivvheels, of a master `wheel driven by said numeral" keysand' adapted to 'engage lsaid computing Wheels Seriana/nto turn 'tliem,'a' link connected to 2.5 i

each numeralkey, a lug on said link,a cam in which said lin-k is guided,a power-driven member adaptedto strike said lug when said 'lng haspassed part Way along said cam, anextension on 'said'cam adapted toguide said lug'. out of the path'of said4 driven member,1

and a cam'on'said driven member adapted to force said lug,` "along saidcani extension."-

A 12. In a5 combined typewriting. and computing machine, the combinationWith nuineral keysand computing Wheels, of a mas'- ter Wheel driven by`said keys and'ad'apted to en'gagefsaid Wheels serzatz'm, a linkconneeted'to eaeh'nuniera-l key, a'lug oii eaelivof saidflinks, a cam inwhich each lug travels,

a `power-driven member adapted to engage anylug to eauseitto travel 'insaid cam and becarried out of the path of said member, a spring normallyholdingeachglink so that each lug will travel in the -path of said:driven member, and resilient means for holding saidcain in positiom`l3.. flfn acomputing machine, thecQmbi 'nation vvith a Yconstantlyrotating member, of computing wheels, key lever forming sa part oftheconnection between :said member and said Wheels, -ali'nk on eachkeylever, a type baroonnected tojsaid' key' lever,- and a cam'for movingsaid link as said key lever a is depressed-to bring 'said link into thepath .14.; a combined typewritingvand com.F putingjgmachine,tliefcombination with nu meralkeysfand. computing wheels, lof an'V eX-tension on each numeral key for turning said Computingf Wheels, typebarsalso connect` ed "to "said numeral' keys, a Ypower-driven memb e r,`a. cai-n effective atl the operation of h numeral'ke to'bring-itsextension into pathof power-driven member, and

Cain "onr said power-driven ln'ieinberfior 10. In a combinedtypevvriting and com,

making the connection/between ber and vsaidr extension inefi'ective. 15.I n 'a computing machine, the-'combinan i' tion with compi'itingwh'eelsand zii-powerdriven member, of a lug adapted to be moved by saidpoWer-driven member to turn afcomf' puting Wheel, means .for guidingsaid lg into the pat-lil of said :power-driven member, anarm formingpart of said power-'driven' member which 'engages .said lug, and a cam.forming part of said arm for moving said lug beyond the path olf-saidarm Whensaid lug has been inoved'a predetermined amount jbysaid armi l16. In. a 'computing machine, the combina- 'tion with computing Wheelsand apoweri- -driven member, of' a lug, an arm forming part ofsaid'poiverdriven member,' means for movingsaid lug into the path-0f.said power-driven member to turn a"c0mputing \v'*lieel,.means for movingsaid lug` outof the path of'said'povver-driven memberfxvlienit hasmoveda predetermined amount, and al vvconnection between said lugand-tlieeomQ -puting wheel moved vthereby adapted to'comf pletethetuinin'g of said computing Wheel', before said lughas been completelyso moved by said poner-driven member'.

` l17. In a computing machine, the combination with computing Wheels andapo'wer-l 95 driven member, of a lug,'an arm forming part of saidpower-driven member, means for moving saidlug into the path of saidpower-driven member to'turn a computing Wheel, means'for-moving saidvlug out 0f the lpath of said powerldriven member .when it has 4moved apredetermined amount, a connection between' said lug and the computing'wheel moved thereby adapted to complete'. the turning of sa'idcomputing'Wheelbefore said lug lias vbeen completely so moved vby saidpower-driven member, a canrfor guiding said'lu, and vmeans for holdingsaid cam yieldab y' so as tolpern'iit said lug` to 'moveidly to someextent if moved by said' 'i1-0 .power-driven member. A18. 'In- 'a--computing machine, the combinaf tion with a power-driven member andcomputing wheels, of a lug forturning a coniputing wheel when struck bysaid poiverdriven inembei', a Cam for guiding said lug into and out4 ofthe path of said po\verdriven member, a slidably pivoted plate carryingsaid cannaiid a lever 'to lwhichA said lcam is slidably pivotedreleasablv holding said cam in position. 7 '19. In a combinedtypevvriting and com# p'uting" machine, the combination with' a' row. ofkeys and key leverson ivhich they are' mounted, of a type bar connectedto each key lever, a power-driven shaft'beiieath vsaid key leversya'ndadjacent to them. a lug'ponnected 'to each key leven-an arm onfsaidvpovverfdrivenshaft for each key lever, means or' moving said lugsintothe path 'of said iva 1 a source of' power, computing wheels'adapted tobe driven by said numeral-keys, means arms forcauysing saidkev levers tocompute and print-,and ,cams on said .arms for moving said lugs toineffective positions.

allyioperable alphabet and numeral keys, 'of

for connecting said power to ysaid numeral keys bythedep'ression Vofsaid numeral keys, y a swinglng lcamfor each numeral key for soiconnecting-it, and a -lug'for'each key oper- .atedv by its camtodisconnect said keys fromv said sourceo'f power. I

21. The 'combination-with a' bank of type lwriter printing keysincluding keys operat-v4 alphabet and` numeral printing types,-computing wheels,v

ingof a source of power, means for operatin -saidtypesfmanually by saidkeys, means -or connecting said numeral types to said sourceof power byini.-

wheels, a' swinging 'cam for each numeral key, a follower Jfor vsaidkey'in. its cam for Y so connecting it, and alug connected t each keyand operated Isaid type. Jfrom said .powen '22. In a comb`nedtypewriting and com-v puting mach-ine, the'combination withl a1- Jphabetand numeral keys, of a .source "of power; mleansffor connecting saidpower to said numerall keysv and not said alphabet keys, ,a swingingcani for each numeral key, a; lug for each' key'- operated byits 'canito disconnect power, computing wheels driven 'by said power-operatedkeys, and mea-ns'for preventing 'overthrowof said computing Wheels; iWALTER WRIGHTv ".lVitnesses; f f 'EDITH B. LrB'BEY,

. C. RIPLEY.

Said. kys Jfrom saidsource of by its .cam to'disconnelct

